Device to untwist, unravel and open up a textile yarn
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 1, 1994
Issued Date -
N/A
app pub date -
Aug 19, 1992
filing date -
Jul 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The device involves the use of two nozzles (5 and 6) alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.
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